Used individually, the 25G MAC has a round trip time (RTT) of only 20.5 ns, and the 25G LL PCS has a RTT of 107.5 ns. The combined 25G LL MAC/PCS transfers data at an impressive packet RTT of 128 ns on the Virtex® UltraScale™ FPGA. The cut-through mode operation minimizes latency, and the store-and-forward feature allows for minimum application load. The 25G LL MAC/PCS uses 7930 LUTs (MAC: 2680 LUTS, PCS: 5250 LUTS) and features Deficit Idle Count / Programmable IFG; Fault Management, BER monitoring; Statistics counters for parameters such as frames and bytes sent/received into size bins, FCS errors, and frame types. The FIFOs for clock compensation and clock domain conversion can be removed to achieve absolute minimum latency.

Available now, the 25G LL MAC/PCS is offered with a range of competitively priced licenses to suit the size and requirements of each project. Customers can evaluate the RTT for themselves using a bitfile on Chevin Technology’s eco-system partner Alpha Data’s ADM-PCIE-8V3 board. The 25G LL MAC/PCS is also compatible with Xilinx’s VCU108 board, and interoperates with the Mellanox MCX4121A-ACAT NIC. Deliverables include a reference design for Alpha Data’s ADM-PCIE-8V3 board, data sheet & user guide, compiled netlist, simulation test bench; build scripts for Vivado and integration support.

“The 25G ultra low latency MAC/PCS cores are a valuable addition to the range of Chevin Ethernet IP. The Chevin 25G IP running on the Alpha Data ADM-PCIE-8V3 provides a complete off-the-shelf foundation for exploiting the features of the Xilinx Virtex® UltraScale™ FPGA in accelerated networking applications. With proven performance, stability and interoperability, customers can design and deploy with confidence.” -David Miller, Managing Director, Alpha Data

About Alpha DataEstablished in 1993, Alpha Data is a world leader in high performance Xilinx FPGA based plug-in acceleration boards for Data Center applications. For more information on Alpha Data and its products, please visit www.alpha-data.com.